Acromag 948 Series, Руководство пользователя

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AVME948x USER'S MANUAL Digital I/O Board
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Optional Termination Panel - Optional universal termination
panel available for use with contact closures, relays, and
incandescent lamps.
•
Byte or Word Interchange - Byte or word data transfers.
•
Built-in ID PROM - On board identification PROM included.
•
Port 0 Interrupt Handling - Port 0 may be used for
handshaking mode with both flag and interrupt capability.
•
Status Indicators - Pass/Fail status indicators on front panel.
•
Front or Back I/O Access - I/O points are accessible through
the front panel or out of the back of the card cage.
VMEbus INTERFACE FEATURES
•
Slave Module - Slave Module A16, D16/D08(E0).
•
Release-On-Register Access Interrupts - D08(0) RORA
type Interrupter.
•
Single/Multiple Input Vectors - Single or Multiple Interrupt
Vectors.
•
Short Addressable - Responds to short address modifier
codes 29H, 2DH (a capital H suffix indicates a hexadecimal
number).
•
Low Memory Consumption - Board occupies 1K bytes of
memory space (jumper selectable).
•
ID PROM - Board Identification PROM installed.
2.0 PREPARATION FOR USE
UNPACKING AND INSPECTION
Upon receipt of this product, inspect the shipping carton for
evidence of mishandling during transit. If the shipping carton is
badly damaged or water stained, request that the carrier's agent be
present when the carton is opened. If the carrier's agent is absent
when the carton is opened and the contents of the carton are
damaged, keep the carton and packing material for the agent's
inspection.
For repairs to a product damaged in shipment, refer to the
Acromag Service Policy to obtain return instructions. It is
suggested that salvageable shipping cartons and packing material
be saved for future use in the event the product must be shipped.
This board is physically protected with
packing material and electrically protected
with an anti static bag during shipment. It
is recommended that the board be visually
inspected for evidence of mishandling prior
to applying power.
The board utilizes static sensitive
components and should only be handled at
a static-safe workstation.
CARD CAGE CONSIDERATIONS
Refer to the electrical specifications for loading and power
requirements. Be sure that the system power supplies are able to
accommodate the power requirements of the board, within the
voltage tolerances specified.
IMPORTANT: Adequate air circulation must be provided to prevent
a temperature rise above the maximum operating temperature.
BOARD CONFIGURATION
This Digital I/O Board may be configured in a variety of ways for
many different applications. Each possible jumper setting will be
discussed in the following sections. The jumper locations are shown
in Drawing 4500-981 at the back of this manual.
Default Jumper Configuration
A board is shipped from the factory configured as follows:
•
VMEbus Short I/O Address of 0000H.
•
Set to respond to both address modifiers 2DH and 29H.
•
All of the ports have the reference and pullup resistors
connected to +5 Volts.
•
Board will assert SYSFAIL* after power-up or reset.
ADDRESS ASSIGNMENT
Jumpers J17 and J19 are used to establish the base address
for the 1Kbyte block of memory that the AVME948x will occupy in
the short I/O memory map. J17 selects the base address, while J19
selects the address modifier codes. An open jumper corresponds to
a logic 0 state for the base address. For the address modifier code,
an open jumper selects the Short Supervisory Access (2DH) code
and a jumper short will allow the card to recognize both the Short
Supervisory and the Short Non-Supervisory Access (29H) codes.
Table 2.1 VMEbus Address Decode Jumper (J17 Pins)
BASE
ADDR
(HEX)*
A15
(11&12)
A14
(10&9)
A13
(8&7)
A12
(6&5) A11
(4&3)
A10
(2&1)
0000 OUT OUT OUT OUT OUT OUT
0400 OUT OUT OUT OUT OUT IN
0800 OUT OUT OUT OUT IN OUT
0C00 OUT OUT OUT OUT IN IN
1000 OUT OUT OUT IN OUT OUT
. . . . . . .
. . . . . . .
. . . . . . .
EC00 IN IN IN OUT IN IN
F000 IN IN IN IN OUT OUT
F400 IN IN IN IN OUT IN
F800 IN IN IN IN IN OUT
FC00 IN IN IN IN IN IN
* Consult your host CPU manual for detailed information about
addressing the VMEbus short I/O space (A16, 16-bit). In many
cases, CPU's utilizing 24-bit addressing will start the 16-bit
addressing at FF0000 (Hex), and 32-bit CPU's at FFFF0000
(Hex).
PORT JUMPERS AND OPTIONS
Several jumpers have been included for flexibility in interfacing
to external devices. Table 2.2 describes these jumpers and their
functions.
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